first commit

projecten1/lib/python3.6/site-packages/pip/_internal/models/__init__.py

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+from pip._internal.models.index import Index, PyPI
+
+
+__all__ = ["Index", "PyPI"]

projecten1/lib/python3.6/site-packages/pip/_internal/models/index.py

@@ -0,0 +1,15 @@
+from pip._vendor.six.moves.urllib import parse as urllib_parse
+
+
+class Index(object):
+    def __init__(self, url):
+        self.url = url
+        self.netloc = urllib_parse.urlsplit(url).netloc
+        self.simple_url = self.url_to_path('simple')
+        self.pypi_url = self.url_to_path('pypi')
+
+    def url_to_path(self, path):
+        return urllib_parse.urljoin(self.url, path)
+
+
+PyPI = Index('https://pypi.org/')